2How to set up a Telegram channel? (A step-by-step tutorial) Content is editable within two days of publishing Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. Telegram users themselves will be able to flag and report potentially false content.
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